Hydraulic punch.



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No, 644,163. Patented lan. 9, i900.

F. H. STILLMN.

HvnnAuLlc PUNCH.

Y (Application filed May 19, 1899.) (No Model.) I 2 Sheets-Sheet 2.

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UNT-Teun STATES PATENT @Trina rnANcis n. sriLLMAN, or NEW YORK, N. Y.

HYDRAULIC PUNCH.

srncrrrcnrxon forming part of Lettere Patent Ne. 641,163, dated January9, leoo.

Application nea nay 19, 1899. serai ne. 717,440. (No meer.)

.T ctZZ whom t may concern,.-

Be it known that I, FRANCIS H. STILLMAN, a citizen of the United States,residing in the city of New York, borough of Brooklyn, in

the county of Kings and State of New York,

have invented a certain new and useful Improvement in Hydraulic Punches,of which the following is a full, clear, and exact description,reference being made to the ac- Io companying drawings, forming part ofthis speciication.

This invention relates to improvements in hydraulic punches by whichholes are punched in the rails of elect-ric railways preparatory tobonding the rails; and the objectof the invention is to provide a toolfit to punch the holes required to receive the bondrivets in the flangesof girder-rails either after or before the rails have been permanentlyzo laid.

On the accompanying sheets of drawings, Figure 1 is a side andpartly-sectional elevation of this punchingtool and a cross-section of afragment of a rail and illustrates the rez 5 lation of the tool to therail when the tool is in use; Fig. 2, a plan of a particular part of thetool; Fig. 3, a front and partly-sectional view of the same part; Fig.4, a front elevation of the tool; and Fig. 5, a cross-section of 3o afragment of a rail, showing a bond-rivet upset in the flange.

Similar reference-numerals designate like parts in the different views.

The work of bonding a line of girder-rails is done more convenientlywith this punching-tool and a riveting-tool,which is described inanother application for a patent, than it is by the common practice,`and the rails are bonded with these tools more effectively and 4odurably than they commonly are when the bonds are secured to the webs ofthe rails. The holes required to receive the bond-rivets are taperingholes, which are smaller at the bottom, where they conform closely tothestems of the rivets, than they are at the top.

ram 2, excepting that part next to its lower end which projects from thecylinder, and on this cylinder is the head 3, which is screwed into thetop of the cylinder. The head contains the pump by which the ram isactuated and with which the pump-handle 30 is connected. Handles 13,-bywhich the tool may be lifted and carried, areattached to the sides ofthe ram-cylinder. To the lower end of the ram 2 a base 4 is affixed.This base is an oblong steel casting, which has midway between its endsa collar 40, and a hole 41, extending from the collar through thebase,the diameter of the hole being less than that of the interior of thecollar, at the bottom of which is the shoulder 42. The collar has in ittwo screwthreaded holes 43. The bottom of the base is flat, except atthe back and next to the ends of the arms 44 and 45, where there are twoprojections 46. The front faces of these projections are parallel to theplane am, Fig. 2, containing the axis of the hole 41 and cutting theends of the base at right angles, and they are both at the same distancefrom that plane as the axes of the holes which are to be punched in therails to receive the bond-rivets are to be from the edges of the flangesof the rails. The surfaces 47 on the front of the base are parallel tothe plane y y, Fig. 2, which cuts the plane at right angles and on theaxis of the hole 41, and the distance of each of these surfaces from theplane y-g/ is equal to one-half the distance between the axes of therivets of a rail-bond. The arm 45 of the base has on it a rib 4S, inwhich is a screwthreaded hole 49, which extends from the outer end ofthe arm to the hole 41. The lower part of the ram conforms to theinterior and top of the collar 40 of the base 4, and when the base isaflixed to the ram the shoulder 20 on the ram rests on the collar andthe bottom or face of the ram rests on the shoulder 42 within thecollar, while the axis of the ram coincides with that of the interior ofthe collar and with the prolonged axis of the hole 41. The exteriordiameter of the collar is the same as that of the ram above and adjacentto the shoulder 20, and the position of the base ou the ram is shown byFig. 4, and Fig.

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l in which the base is shown in cross-section in the plane yy, Fig. 2.The base is fastened on the ram by set-screws in the holes 43 in thecollar screwed against the ram. The die 2l is fastened in the hole 41 inthe base 4by a set-screw in the hole 49, screwed against the die, theface of the die being flush with the bottom of the base around the hole4l, and the top of the die being in contact with the face of the ram.The interior diameter of the die is greater than the diameter of thepunch. The ram contains a hole whose lower part 22 is on the axis of theram and forms a prolongation of the interior of the die and whose upperpart 23 extends from the part 22 to the front of the ram above thecollar 40, and in the front of the cylinder ll and at its lower end is aslot 14, the hole 22 23 and the slot 14 each being of the proper size toallow the slugs which are to be punched out of the rails to pass freelythrough it. The ram is connected by a rack and pinion in the ramcylinderwith the lever 24, the rack being on the ram and the lever beingattached to the shaft on which the pinion is fixed and adapt ed to turnthe pinion. The rack, pinion, and lever are the same as the meanscommonly used to raise the rams of hydraulic tools.

When the holes intended to receive the rivets of a bond are to bepunched with this 'tool in the flanges of abutting rails, the tool isset on the rails so that the base 4 stands on the flanges of the railsand supports the rest of the tool, and the tool is so adjusted that theprojections 46 on the back of the base are in contact with the edges ofthe flanges of the rails, and that one of the surfaces 47 of the base isin the plane in which the abutting ends of the rails meet or in theplane which is midway between the ends of the rails if the rails do not`touch each other. Then, as will be seen from the foregoing description,the axis of the punch and die is at the proper distance from the edge ofthe flange and from the end of the rail in which the hole is to bepunched. The tool is actuated by pumping water from the head into theram-cylinder. The ram being supported on the rails, the water moves thehead and body of the tool instead of the ram and they are forced upwardon the ram, which remains stationary, until the punch is driven throughthe flange of the rail 5. The slug flies upward and out of the ram andram-cylinder through the passage 22, 23, and 14. The hole 50 made in therail is tapering, its diameter at the 'top being the same as theinterior diameter of the die, and its diameter at the bottom the same asthe diameter of the punch. The body and head of the tool, which areusually held up by the punch in the hole in the rail, are forced down bythe handle 24. The adjustment of the tool to prepare for punching thehole in the other rail is effected by moving the tool along the railsand arranging it thereon with the projections 4G in contact with theedges of the .flanges and with the other surface 47 at the abutting endsof the rails. The tool then being operated again,the second hole ispunched at the proper distances from the edge of the flange, the end ofthe rail, and the hole in the other rail. The base 4, it will beobserved, not only supports the tool and maintains it in its workingposition, but also serves as a guide, which facilitates the properadjustment of the tool on the rails.

The rivets of the bonds are inserted in the holes made by this punch inthe flanges of the rails, all parts of the bonds except the stems of therivets being underneath the flanges, where they do not interfere withthe fish-plates or other rail-fastenings and where they are practicallysafe from injury, and the bonds are secured tothe rails with theriveting-tool, which crushes and spreads the rivets within the holes, sothat each upset rivet 5l conforms perfectly from its head upward to theshape of the hole and is tightly fastened therein. This not only renderssecure the attachment of the bond to the rail, but it effects a superiorcontact between the rivet and the rail, the surfaces of contact beingmore than com- Inonly large and the contact being very tight throughoutthe whole extent of those surfaces. The upperend of the rivet isdepressed slightly below the top of the flange of the rail to preventthe rivet from being subjected to any pressu re or blow which might tendto loosen it.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is-

l. A hydraulic punching-tool having its body composed of a frame and aram-cylinder, firmly united the frame having the fixed jaw l0 under theram-cylinder, and the tool comprising the combination with the body of:a punch on the jaw 10; a ram in the ram-cylinder; a die on the face ofthe ram; a pump connected with the ram-cylinder; and a toolsupportingbase extending on opposite sides of the prolonged axis of theram-cylinder,be low the ram-cylinder and above the jaw 10; the ramcontaining a slug-passage extending from the die to the exterior of theram; substantially' as described.

2. A hydraulic punching-tool having its body composed of a frame and aram-cylinder, firmly united, the frame having the fixed jaw 10, and thetool comprising the combination with the body of: a punch on the jaw l0;a ram in the ram-cylinder; a die on the face of the ram; a pumpconnected with the ramcylinder; and a tool-supporting base on the ram,extending in opposite directions from the die; the ram containing aslug-passage extending from the die to the exterior of the ram;substantially as described.

8. A hydraulic punching-tool having its body composed of a frame and aram-cylinder, firmly united, the frame having the xed jaw lO, and thetool comprising the combination with the body of: a punch on the jaw 10;a ram in the ram-cylinder; a die on the face of the ram; a pumpconnected with the ramcylinder; and a tool-supporting base on the ram,fashioned to fit on the rails of a railway on opposite sides of the bodyof the tool; the

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ram containing a slugpassage extending from the die to the exterior ofthe ram; substantially as described.

4. A hydraulic punching-tool comprising the combination of: a jaW andpunch on the lower part of the body; a ram-cylinder containing a ram, onthe upper part of the body; a die on the face of the ram; a pumpconnected With the ram cylinder; and a toolsupporting base on the ram,extending on opposite sides of the die, and fashioned to fit on theflanges of the rails of a railway, and having on its under side, at theback, projections 46, and on the front, surfaces 47; the ram containinga slug-passage extending from the die to the exterior of the rain;substantially as described.

5. A hydraulic punching-tool having its body composed of a frame and aram-cylinder, firmly united, the frame having the fixed jaw lO under theram-cylinder, and the tool coinprising the combination with the body ofa punch on the jaw l0; a ram in the ram-cylinder; a die on the face ofthe ram; a pump connected with the ram-cylinder; and a device extendingon opposite sides of the prolonged axis of the ram-cylinder, below theram-cylinder and above the jaw l0, and fashioned as a guide tofacilitate the adjustment of the tool on the rails; the ram containing aslug-passage extending from the die to the exterior of the ram;substantially as described.

6i A hydraulic punching-tool comprising the combination of a jaw andpunch on the lower part of the body; a ram-cylinder containing a ram, onthe upper part of the body; a pump connected with the ram-cylinder; atool-supportingbase comprising a collar and having in it a hole 4l, thebase being held on the ram by the collar surrounding the lower end ofthe ram; and a die secured in the hole il; the ram containing aslug-passage ex- Ifen ding from the die to the exterior of the ram abovethe collar; substantially as described.

7. A hydraulic punching-tool having its body composed of aframe andaram-cylinder, rmly united, the frame having the xed jaw lO, and thetool comprising the combination With the body of: a punch on the jaw10;' a ram in the ram-cylinder; a die on the face of the ram; and a pumpconnected With the ramcylinder; the ram containing a slug-passageextending from the die to the exterior of the ram; substantially asdescribed.

8. A hydraulic punching-tool having its body composed of the frame l andcylinder 11, firmly united, the frame having the ixed jaw 10, and thecylinder having the opening 14 in its front at the lower end, and thetool comprising the combination with the body of: a punch on the jaw l0;the ram 2 in the cylinder; a die on the face of the ram; and a pumpconnected with the cylinder; the slugpassage 22, 23 in the ramconnecting the interior of the die with the opening 14 in theram-cylinder when the punch and die are brought together; substantiallyas described.

9. A hydraulic punching-tool having its body composed of the frame l andcylinder l1, the frame having on it the jaw 10, and the cylinder havingthe opening 14 in its front at the lower end, and the tool comprisingthe combination with the body of: the punch l2 on the jaW 10; the ram 2in the cylinder; the head 3 on the cylinder; the base 4 on the ram; andthe die on the face of the ram in the base et the slug-passage 22, 23 inthe ram connecting the interior of the die With the opening 14 in theram-cylinder when the punch and die are brought together; substantiallyas described.

FRANCIS H. STILLMAN. In presence of- EDWARD R. M. VANNETT, GERTRUDE T.PORTER.

